Look for the information under the PackageFullName field, highlight it, and copy it. For me, it was king.com.CandyCrushSaga_kgqvnymyfvs32. With it copied to your clipboard, type the following command, but replace it with whatever your PackageFullName is:

If I go into the Windows Store, it shows that I own this wretched game. However, when I launch Powershell and run "Get-AppxPackage -Name king.com.CandyCrushSaga", all that happens is I'm returned to a command prompt at C:\Users\.